1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
# getaddrinfo.m4 serial 20
dnl Copyright (C) 2004-2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_GETADDRINFO],
[
AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H
AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
GETADDRINFO_LIB=
gai_saved_LIBS="$LIBS"
dnl Where is getaddrinfo()?
dnl - On Solaris, it is in libsocket.
dnl - On Haiku, it is in libnetwork.
dnl - On BeOS, it is in libnet.
dnl - On native Windows, it is in ws2_32.dll.
dnl - Otherwise it is in libc.
AC_SEARCH_LIBS([getaddrinfo], [socket network net],
[if test "$ac_cv_search_getaddrinfo" != "none required"; then
GETADDRINFO_LIB="$ac_cv_search_getaddrinfo"
fi])
LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
AC_TRY_LINK([
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#include <stddef.h>
], [getaddrinfo("", "", NULL, NULL);],
[gl_cv_func_getaddrinfo=yes],
[gl_cv_func_getaddrinfo=no])])
if test $gl_cv_func_getaddrinfo = no; then
AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32],
gl_cv_w32_getaddrinfo, [
gl_cv_w32_getaddrinfo=no
am_save_LIBS="$LIBS"
LIBS="$LIBS -lws2_32"
AC_TRY_LINK([
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
#include <stddef.h>
], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
LIBS="$am_save_LIBS"
])
if test "$gl_cv_w32_getaddrinfo" = "yes"; then
GETADDRINFO_LIB="-lws2_32"
LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
else
AC_LIBOBJ([getaddrinfo])
fi
fi
# We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
# inline function declared in ws2tcpip.h, so we need to get that
# header included somehow.
AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
gl_cv_func_gai_strerror, [
AC_TRY_LINK([
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
#include <stddef.h>
], [gai_strerror (NULL);],
[gl_cv_func_gai_strerror=yes],
[gl_cv_func_gai_strerror=no])])
if test $gl_cv_func_gai_strerror = no; then
AC_LIBOBJ([gai_strerror])
fi
LIBS="$gai_saved_LIBS"
gl_PREREQ_GETADDRINFO
AC_SUBST([GETADDRINFO_LIB])
])
# Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c.
AC_DEFUN([gl_PREREQ_GETADDRINFO], [
AC_REQUIRE([gl_NETDB_H_DEFAULTS])
AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB
AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB
AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([gl_SOCKET_FAMILIES])
AC_REQUIRE([gl_HEADER_SYS_SOCKET])
AC_REQUIRE([AC_C_INLINE])
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
dnl Including sys/socket.h is wrong for Windows, but Windows does not
dnl have sa_len so the result is correct anyway.
AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [#include <sys/socket.h>])
AC_CHECK_HEADERS_ONCE([netinet/in.h])
AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
/* sys/types.h is not needed according to POSIX, but the
sys/socket.h in i386-unknown-freebsd4.10 and
powerpc-apple-darwin5.5 required it. */
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
])
if test $ac_cv_have_decl_getaddrinfo = no; then
HAVE_DECL_GETADDRINFO=0
fi
if test $ac_cv_have_decl_freeaddrinfo = no; then
HAVE_DECL_FREEADDRINFO=0
fi
if test $ac_cv_have_decl_gai_strerror = no; then
HAVE_DECL_GAI_STRERROR=0
fi
if test $ac_cv_have_decl_getnameinfo = no; then
HAVE_DECL_GETNAMEINFO=0
fi
AC_CHECK_TYPES([struct addrinfo],,,[
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
])
if test $ac_cv_type_struct_addrinfo = no; then
HAVE_STRUCT_ADDRINFO=0
fi
dnl Append $HOSTENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
case " $GETADDRINFO_LIB " in
*" $HOSTENT_LIB "*) ;;
*) GETADDRINFO_LIB="$GETADDRINFO_LIB $HOSTENT_LIB" ;;
esac
dnl Append $SERVENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
case " $GETADDRINFO_LIB " in
*" $SERVENT_LIB "*) ;;
*) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;;
esac
])
|